baber/WOPTO huggingface dataset:
Patent GB-552775-A (GB)
Title: Improvements in guide devices to facilitate filing of surfaces by hand tools
IPC: B23D67/00
Filed: 1941-11-01
Abstract: 552,775. Reciprocatory filing-machines. PENNELL, J. F. Nov. 1. 1941, No. 14107. [Class 83 (iii)] A filing-guide comprises jaws which grip the work and also carry guide means for the file, the angle of the gripping faces of the jaws being adjustable in relation to the plane of the guide means. A U-shaped bracket 1 formed of side cheeks 2 and back plate 3 carries a pair of tiltable jaws 4, 11. The jaw 4 pivots about fixed trunnions 5 and carries pins 8 moving in arcuate slots in the side cheeks, the jaw being clamped after adjustment by nuts 10. The jaw 4 is further supported by adjustable set screws 4a. The second jaw I has pins 12 moving in straight slots 13 in the side cheeks. Each jaw is provided with a hardened steel roller 7, 7a, each being located at the same distance from the pivot of its respective jaw. When the jaw 4 is adjusted, work is placed between the jaws and the device placed in a vice, Fig. 3, so that one vice jaw engages the plate 3 and the other the back of the jaw 11 which in gripping parallel-sided work will adjust itself to the same inclination as the jaw 4. The rollers 7, 7a serve to guide the file to form a face at the required angle on the work. For further angular adjustment of the work between the jaws the jaw 4 carries a pair of guide blocks 16, 17, the block 16 being horizontally adjustable in a slot 19 and the block 17 being pivoted to a block which is vertically adjustable in a slot 25. The blocks may be angularly adjusted by scales 27.
Patent GB-373768-A (GB)
Title: A new method of manufacture of dart boards
IPC: F41J3/00
Filed: 1931-05-14
Abstract: 373,768. Dartboards. HUNT, A. E., 5, South End, Croydon. May 14, 1931, No. 14273. [Class 132 (iii).] A wire mask dial frame for attachment to a dartboard is constructed by welding together separate wires to form the dial and suitably fixing the latter to the board, wire numerals being welded to a separate ring fixed to the board concentrically with the mask.
Patent GB-617348-A (GB)
Title: Improvements in tractor-drawn agricultural implements such as ploughs
IPC: A01B3/44
Filed: 1946-05-11
Abstract: 617,348. Agricultural implements. FERGUSON, Inc., H. May 11, 1946. No. 14312. Convention date, June 23, 1945. [Class 6 (i)] A two-way plough is attached to a tractor equipped with a power-lift device in such a way that the reversal of the plough bodies is automatically effected at each raising and lowering of the implement as a whole by the power-lift means. In the form shown, the implement comprises an attachment for a tractor of the general type described in Specifications. 470,069 and 470,087. The tractor is 'provided with hydraulically-operated lift-arms 22 connected by lifting links 21 to lower links 20. The implement proper comprises a rigid triangulated frame including stays 35, 38, 43 joined to one another and to a housing 40, the housing being provided with forwardly-extending arms 45 between which a shaft 47 is mounted. The beams 29 of a twoway plough are pivotally mounted on the shaft 47. An upper hitch link 28 is joined between a point 44 on the frame and a pivoted bell-crank 26 forming part of an automatic depth-regulating system as described in Specification 470,069. The plough bodies 30 may be selectively lowered into ground-engaging position by the rotation of cranks 68 spaced 180 degrees apart and carried on a shaft 63 passing through the housing 40. The shaft carries a ratchet pin-wheel 64, the pins 70 of which are engaged by toggle mechanism 71, 72. The operation of the toggle is derived from relative motion between the upper link 28 and the frame as a whole on each raising and lowering of the implement, the motion being transmitted from the link 28 to the toggle by a link 62 having a notch 104 engageable by a pin 103 on the upper link 28. The link 28 is composite and includes a relatively-slidable part 97 having a notch which shields the pin 103 during normal operation, when the link is. under compression, but releases the pin for engagement by the notch 104 on the raising of the plough. The pivotal connection between the plough beams 29 and the shaft 47 permits small lateral adjustments of the plough bodies by means of a screw 61 bearing against a boss. The assembly also includes a disc coulter 32 for each plough body, the coulters being mounted on arms 114 pivoted to the beams 29 and urged resiliently outwardly. Furrow wheels 31 follow each ploughshare. Specification 544,041 also is referred to.
Patent GB-881607-A (GB)
Title: Fluid sealing means between two relatively rotating members
IPC: F16J15/32
Filed: 1960-04-22
Abstract: 881,607. Stuffing - box substitutes. FEDERAL - MOGAL - BOWER BEARINGS Inc. April 22, 1960 [Sept. 14, 1959], No. 14313/60. Class 122 (5). Sealing means between outer and inner relatively rotatable parts, for example a pinion carrier 65, Fig. 3, and a pinion shaft 63 of an automobile differential, comprises a wear element formed by two metal L-section rings 23, 24 interengaged to form a channel section and frictionally secured to the inner member 63 by a rubber &c. lining 35 on its inner cylindrical surface 34 and a metal casing 51 rotatable with the outer member 65 and having a rubber &c. sealing member 52 in rubbing sealing contact with the outer cylindrical surface 26 of the wear element, the casing and the wear element being relatively movable axially within limits determined by the radial flanges 28, 31 of the element. The rings 23, 24 are secured together by a rolled-over portion 32 of the inner ring 23 and the rubber lining 35 is extended over both sides of the radial flange 31 of the ring 23, the portion 46 acting as a bumper for the casing 51 and the portion 48 forming a gasket between the rings 23 and 24. An axially extending portion 42 integral with the lining 35 forms with the casing 51 a labyrinth preventing grit &c entering the seal. A lead-on portion 38, 39 on the lining 35 facilitates its insertion on a sleeve 64 secured to the shaft 63. The radial flange 28 of the ring 23 acts as an oil flinger. The sealing member 52 is bonded to the casing 51 and has a flexible lip 54 pressed against the surface 26 by a garter spring 55. The casing 51 is press-fitted in the carrier 65 and is axially located by a flange 57 abutting the end of the carrier. In modifications, the casing is formed by two parts clamped or welded together. In the modification shown in Fig. 7, lips 120, 121 and 122 of a sealing element 115, preferably integral with the rubber lining 116, contact the surface 112 of the casing 104 and the sealing member 101 has a grit-excluding lip 102 in addition to the oil sealing lip 103. The space 123 is filled with grease.
Patent GB-854740-A (GB)
Title: Improvements relating to valves for dispensing liquid or semi-solid substances
IPC: B65B3/30
Filed: 1959-04-27
Abstract: 854,740. Filling cartons. ANDERSON, R. F. April 27, 1959 [May 26, 1958], No. 14325/59. Classes 94(1) and 125(2). [Also in Group XXIX] A rotary cylindrical valve for dispensing a number of different liquid or semisolid substances into a container, comprises a horizontally disposed hollow cylindrical valve body 21, Fig. 1, having a discharge orifice 41 on its underside and lengthwise and transverse partitions 45, 46 dividing the body into first and second chambers 47, 48 connected to inlets 43, 42 respectively through which two separate substances e.g. two differently flavoured ice creams are admitted. The partition 45 has a hole 49 there-through and the partition 46 extends across the orifice 41 so that the two substances may be dispensed side-byside into a cup C on rotation of a valve sleeve member 27 having one or more discharge nozzles 36. The valve sleeve member 27 is mounted on a shaft 11 for rotation by a filling machine which through suitable gearing drives a conveyer to advance the cups one-by-one under a nozzle 36. In another embodiment in which three substances are dispensed side-by-side into a cup, a Y-shaped partition having limbs 63, 64, 65, Fig. 7, is located lengthwise of the body and two transverse partitions across the discharge orifice 62 to divide the valve into three chambers. The chamber 63, 65 communicating with the orifice on one side of one transverse partition, a hole 69 in the limb 63 permitting the chamber 63, 64 to communicate with the orifice between the partitions and a hole (not shown) in the limb 64 permitting the chamber 64, 65 to communicate with the orifice on the other side of the other partition. In a modification in which two substances are dispensed side-by-side and subsequently covered by a third substance, the body 21, Fig. 3, includes two orifices 51, 52. The orifice 51 communicating with two of the chambers to dispense the side-by-side substances and the third chamber communicating with the orifice 52. Specification 813,369 is referred to.
Patent GB-1044914-A (GB)
Title: Recovery and purification of c-alkyl imidazoles
Inventor: OAKES MERWIN DIXON
IPC: C07D233/56
Filed: 1963-04-10
Abstract: C-Alkyl imidazoles are purified by a process which comprises distilling the crude product in the presence of an alkyl aromatic hydrocarbon which boils largely 10 DEG  to 40 DEG  C. below the boiling point of the product, preferably collecting the distillate mixture boiling below the boiling point below that of the imidazole alone. The imidazole may be recovered by cooling the distillate, thus crystallizing the product which may be filtered and washed with toluene followed by pentane, the remaining mother liquor of aromatic hydrocarbon being recycledto the distillation. An inert stable low boiling solvent, especially isopropanol, may be used as diluent prior to the addition of the hydrocarbons, which diluent may be removed as a fore-run.  The preferred alkyl aromatic hydrocarbons specified are the alpha and beta methyl naphthalenes.  The preferred starting materials are the methyl and ethyl imidazoles.  Other specified hydrocarbons include phenyl hexanes and heptanes, methyl dipropyl benzenes, diphenyl methane, trimethyl diethyl benzene. The examples describe the production of crude 2-methyl imidazole by cyclizing ethylene diamine diacetate with a Pt/Al2O3 catalyst and subsequent purification using as co-distilland a mixture of alpha and beta naphthalenes.
Patent GB-253148-A (GB)
Title: Improvements in apparatus for straining paper pulp or like fibrous material
IPC: D21D5/06
Filed: 1926-06-07
Abstract: 253,148. Thune, S. June 6, 1925, [Convention date]. Rotary strainers; non rotary straining machines with pulsating elements.-Pulsations produced in a rotating-drum straining machine are communicated to a second straining machine. Paper pulp or other fibrous material passes from a supply channel A to a closed container surrounding a rotary drum M, which is provided with outwardly-projecting blades O. Pulsations are caused which promote the passage of the finer fibres through the drum for discharge through a central outlet U. The coarser fibres pass into an outlet chamber E and thence over a dam I and a flat strainer G. The pulsations of the first strainer are communicated by the chamber E and a diaphragm F to the chamber N below the strainer G. The fine fibres still present in the material passing over the strainer G are drawn through the strainer and may be conveyed by a trough L back to the channel A or to the outflow for the fibres from the interior of the drum. A plunger may be used for transmitting the pulsations in the chamber E to the chamber N. A cylindrical strainer may replace the flat strainer G.
Patent GB-220737-A (GB)
Title: Improvements in and relating to protective apparatus for alternating electric current systems
IPC: H02H7/26
Filed: 1923-05-31
Abstract: 220,737. British Thomson-Houston Co., Ltd., and Fitzgerald, A. S. May 31, 1923. Addition to 193,434 and 216,254. Protective arrangements.- Split conductor feeders and interconnectors and other similar pairs of parallel oonductors adapted normally to carry alternating current in a predetermined ratio, both conductors to be isolated in the event of fault, are protected by a winding energized responsively to the difference between t h e normal ratio and the exist. ing ratio due to fault and connected to the primary of a biassing transformer as described in the parent Specification as modified in the Patent of addition 216,254. As shown in Fig. 1, the feeder 12 divided into two splits 13, 14 is protected by an ordinary split-conductor transformer 19 the, secondary of which supplies difference current to the two halves of the divided primary winding 26, 26<1> of a biassing transformer having intermediate flux paths as described in Specification 216,254. The divided secondary winding 27, 27<1> is connected to the tripping circuit and the restraining winding which, by the disposition of the windings is not in inductive relation with the other two, is connected across a current transformer 29 in the unsplit portion of the feeder. With heavy through currents the inherent want of balance of the transformer 19 is compensated for by the saturation of the biassing transformer 24 and the resulting reduction in the inductive action between the primary 26, 26<1> and secondary 27, 27<1>. The modified biassing transformer in which the transformer core is divided into two parts as described in Specification 216,254 may be used instead of the biassing transformer shown in Fig. 1. The split inductor transformer and the biassing transformer may be combined into a single structure as shown in Fig. 3. The splits directly energize the windings 26, 26<1> which by difference current energize the secondary winding 27, 27<1> and by through current saturate the magnetic circuit, thereby affecting the inductive relations between the primary and secondary, and compensating for inherent out of balance of the biassing transformer. If the splits are designed to be normally unequally loaded in a predetermined ratio, the exciting windings of the transformer 19, and its equivalent in the combined arrangement shown in Fig. 3, are chosen so as to give no flux normally.
Patent GB-958009-A (GB)
Title: Improvements in or relating to television and like camera tubes
Inventor: HENDRY ERIC DOUGLAS
IPC: H01J31/36
Filed: 1962-04-13
Abstract: 958,009. Television pick-up tubes. ENGLISH ELECTRIC VALVE CO. Ltd. April 13, 1962, No. 14400/62. Addition to 867,955. Drawings to Specification. Heading H1D. In an image orthicon a common potential which is positive with respect to that of the first dynode of the electron multiplier is applied to the field-terminating mesh adjacent the target and to the anode wall coating. The mesh may be connected internally of the tube to the wall coating or independent external connections may be provided. Specification 847,320 also is referred to.
Patent GB-438519-A (GB)
Title: Improvements relating to boiling or like pans
IPC: A47J27/14
Filed: 1934-05-12
Abstract: 438,519. Boiling-pans. SOUTH METROPOLITAN GAS CO., CHANDLER, D., and SKINNER, A. J., 709, Old Kent Road, London. May 12, 1934, No. 14428. [Class 64 (i)] [See also Group XII] Heating-apparatus suitable for boiling sugar and other foodstuffs comprises a combustion chamber divided into upper and lower portions 61, 6 by a protective shield 17 of heat-resistant material and low thermal capacity, and a gas burner 7 is placed in the lower portion from which products of combustion pass through a central or peripheral discharge into the upper portion, above which the pan 5 is removably supported. The combustion chamber is enclosed in a casing 1 of refractory material, on the wall 4 of which is a ledge supporting the steel shield 7. Combustion gases escape through a central aperture 20 of the shield or through notches on the ledge. The combustion chamber is circular in plan, and has a dome-shaped bottom and a tangential orifice for a burner 7, which raises the thin refractory shield to incandescence. Combustion gases pass into an annular discharge channel 8, in which are placed upper and lower interconnected pipe rings 24, 26 through which air and gas or other fuel are preheated. Combustion gases pass to a circumferential or central flue outlet 21. The rim 3 of the casing is removable.
Patent GB-776583-A (GB)
Title: Prefabricated arch beams
IPC: E04B7/08
Filed: 1955-05-19
Abstract: 776,583. Roofs, ceilings; shuttering for casting ceilings. BILLNER, K. P. May 19, 1955 [June 22, 1954], No. 14449/55. Classes 20(2) and 20(4) A barrel roof, vaulted ceiling, or light concrete structure is made from two or more arcuate sectioned concrete members which are supported on end walls having arcuate supporting surfaces, the space between the two prefabricated members being filled in with bonding concrete. The structure is shown in plan in Fig. 1 and in section in Fig. 2, the prefabricated members 12 being spaced at 14 when laid upon the arcuate end wall. The reinforcements 36 are spaced evenly at the ends of the members 12 but crowd together at the central part of the lower free edges. This enables the spaced reinforcements to take the shear stresses, and the crowded reinforcements to take the tensile stresses at the middle of the section. Additional mesh reinforcements may be used in the member 12. The concrete 18 for bonding together the parts 12 is held by shuttering 19 which consists of a plate 20 and gaskets 22 whereby vacuum means 26 hold the shuttering securely in place. The concrete 18 is supported by a cloth 28 supported on wire mesh 30 whereby vacuum means 33 extract excess moisture from the applied concrete and ensures a quick setting. The temporary shuttering may alternatively be supported by means carried by the upper part of the members 12 and projecting down through the gap between them. The members 12 are made with rough edges 16 and protruding reinforcements 34 to ensure good bonding. Fig. 3 shows two barrel roof parts joined together by applied concrete 40 keyed to the barrel roofs by protruding reinforcements, the applied concrete serving as a gutter. The members 12 may be moulded in superimposed relation. In Fig. 4, the elongated mould 46 has first applied to it a concrete layer 48 including the necessary reinforcements. This layer is formed as regards its upper surface with the same radius of curvature as the mould 46 but with a displaced centre of curvature. The next element 50 is likewise moulded using the element 48 as a mould but with the centre of curvature reversely displaced, and so on. Anti-adhesion means may be inserted between the elements 48, 50, 52. When moulding the concrete is trowelled on its upper surface, and no top mould surface is required provided that the angle between the cord w, Fig. 3, and the tangent to the section 12 does not exceed 45 degrees. The section 12 may be used as a beam being covered over with a flat formation of applied concrete.
Patent GB-1339038-A (GB)
Title: Arc-expansion chamber system for an overvoltage arrester
IPC: H01T4/16
Filed: 1971-05-12
Abstract: 1339038 Protective apparatus BROWN BOVERI & CO Ltd 12 May 1971 [12 May 1970] 14505/71 Heading H2H A voltage surge arrester of the type in which an arc is elongated by electromagnetic means is provided with at least two are expansion chambers which may be placed one above the other or side by side, means be provided to cause an arc to be initiated in one chamber wherein it is lengthened and thereafter passes to the next chamber wherein it is further lengthened. An arrestor comprises two arc expansion chambers 1, 2 made of three porous discs of insulating refractory material. Each chamber is formed between the opposed, complementary surfaces of two of the discs, and the common intermediate disc has its upper and lower surfaces formed with a "wave" configuration. The peripheral wall 14 of each chamber has castellations 3 formed therein. When a voltage surge occurs on a line 15 the primary spark gap 12 breaks down and an arc is established between arc horns 4. The initial arc current is carried by a resistor 10 but as the arc establishes itself the arc current commutates from the resistor 10 to the coil 9 thus setting up a magnetic field which causes the arc between the horns 4 to become elongated and spread out across the arc expansion chamber 1. As the arc expands ions are expelled from the chamber 1 to the chamber 2 thereby ionizing a secondary spark gap 13 in the chamber 2. When the arc in the chamber 1 reaches the inside wall of the chamber a part of the arc spans a pair of electrodes 7 which are electrically connected to arc horns 5 in the chamber 2. The spark gap 13 is shorter than the spark gap 12 so that, at this point the spark gap 13 breaks down and further expansion of the arc takes place in chamber 2. Further chambers may be provided so that continued expansion of the are may be effected if desired. Numerous embodiments are described in which the arc horns are situated radially in the chamber, one being placed at the centre so that in each chamber the arc is elongated to double the length. Furthermore the arc elongation path may be formed in a spiral in which ease the duct 8 and arcing horns 5 may be dispensed with.
Patent GB-496218-A (GB)
Title: Hydraulic punch and die units
IPC: B21D28/00
Filed: 1937-05-25
Abstract: 496,218. Punching. MID-WEST PRODUCTION ENGINEERING, Inc. May 25, 1937, No. 14541. Convention date, May 25, 1936. [Class 83 (iv)] In a punching-machine a plurality of adjustable tools are operated by hydraulic means. A pump 1 driven by an electromotor 2 supplies liquid through a pipe 3 to a regulating valve 4 controlled by a rod 10. The punches 36 are secured to rams 28 guided by cross-heads 31 and operated by a plunger 20 in a cylinder 21 by liquid from a pipe 5a for the working stroke and a pipe 6a for the retraction stroke. In punching an automobile fender 46, Fig. 6, a frame 47 supports a plurality of punch units a-f, g, h-j, k-n. The valve 4 through pipes 5, 6, is connected to the cylinders of the separate punch units which are operated simultaneously when the valve control rod 10 is manually displaced. Spring-urged plates 40 surround the punches 36. The control valve 4 comprises a piston valve 11. In the position shown in Fig. 7, liquid from a pipe 3 flows through a pipe 5 to operate the punches and exhaust liquid flows through a pipe 6 and port 14 back to the pump. On the retraction stroke the flow is reversed.
Patent GB-549915-A (GB)
Title: Improvements relating to charge mixing devices in the induction pipes of internal combustion engines
IPC: F02M1/00
Filed: 1941-11-12
Abstract: 549,915. Mixing charge. SYKES, A. Nov. 12,1941, No. 14570. [Class 7 (ii)] A charge-mixing device comprises a segmental row of teeth disposed in the induction pipe between the carburetter and the engine and extending less than half way round the interior of the induction pipe. As shown, a segmental or ring-shaped flange 4, clamped between the carburetter flange 5 and the induction pipe 7, has a curved part 8 fitting the wall of the induction pipe and provided with teeth 10 twisted at 13, 14 to lie in the direction of the fluid stream. Alternate twists 13, 14 are clockwise and anti-clockwise, and the teeth terminate in a straight-line. The teeth may be inclined as at 10<SP>1</SP>, Fig. 3, in the direction of the fluid stream.
Patent GB-438886-A (GB)
Title: Purification of hydrogen peroxide solutions
IPC: C01B15/013
Filed: 1934-05-14
Abstract: Hydrogen peroxide solutions are purified by producing therein a precipitate of stannic hydroxide by the addition of a colloidal sol of stannic hydroxide, the hydrogen peroxide solution being acid, e.g. having a pH between 1,4 and 3,5, at the time of precipitation.  The resulting precipitate may be either removed by filtration or decantation or left in contact with the solution. The stannic hydroxide sol may be prepared by precipitating a gel by the addition of sulphuric acid to a sodium stannate solution, filtering the gel, washing it with water and peptizing it in water with the aid of ammonia.  Alternatively, alkali metal hydroxide may be used as the peptizing agent.  A stabilizer may be added to the purified solution. Reference has been directed by the Comptroller to Specifications 409,361 and 432,915.